| Electronics > Repair |
| Agilent 34461A display failure......suggestions please! |
| << < (3/7) > >> |
| lowimpedance:
@ 6thimage, A most useful post for others who might also come across this issue with one of these meters at some stage, (out of warranty at least and wish to tackle it themselves). :-+ Will be interesting to hear the results from 300DT. |
| 300DT:
Thank you 6thimage!!!!! What a lot of information to digest....... As you stated, "If it hasn't finished booting, then you won't be able to update the firmware via USB". I tried updating the meter using the Firmware Update Utility and did not get anywhere. No boot no pleasure! Then I went for supper leaving the unit on. On my return an hour later, I found, to my surprise, that the screen turned bright white in colour, and when I picked up the unit I burned my thumb on the "Spear" processor. This processor was hot to the point of burning my skin. It was NOT this hot before. Obviously it failed, by itself, just by being left running. Consequently the screen now does not come up with the black and white "Agilent" notice and freeze, as it did before. Now, after cool-down, I get a bright white screen with no image displayed. I fear I need a new "Spear320-s". This is my report for today. Thank you All for your help so far! Mike VE3BNB |
| max_torque:
Hey, what was the outcome of this failure? My 34461A has just failed with what looks to be the same failure, just a white (blank) screen after power on, nothing else :-- |
| wraper:
--- Quote from: max_torque on October 19, 2017, 12:31:42 pm ---Hey, what was the outcome of this failure? My 34461A has just failed with what looks to be the same failure, just a white (blank) screen after power on, nothing else :-- --- End quote --- If it is not one of the early units, it still should be under 3 year warranty. I would not suggest trying to fix this if you still have warranty. |
| HighVoltage:
Even the early instruments should still be covered by full warranty since the factory warranty was extend by one year on all 3446xA and 34470A models because of the voltage reduction debacle. |
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